CN109028492A - expansion valve control method, device and air conditioner - Google Patents
expansion valve control method, device and air conditioner Download PDFInfo
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- CN109028492A CN109028492A CN201810921794.3A CN201810921794A CN109028492A CN 109028492 A CN109028492 A CN 109028492A CN 201810921794 A CN201810921794 A CN 201810921794A CN 109028492 A CN109028492 A CN 109028492A
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- expansion valve
- temperature
- aperture
- air conditioner
- opening value
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
Abstract
The present invention provides a kind of expansion valve control method, device and air conditioners.That an expansion valve is preset in the air conditioner shuts down aperture to temperature; above-mentioned expansion valve control method includes: when the aperture of the expansion valve being adjusted downward to the first opening value to warm halt instruction according to acquisition and with first opening value the first duration of operation; the aperture of the expansion valve is adjusted downward to the second opening value by first opening value; wherein; first opening value is greater than the temperature that arrives and shuts down aperture, and second opening value is less than the temperature that arrives and shuts down aperture；Obtain corresponding operation data when the air conditioner is run with second opening value；If the operation data of the air conditioner meets preset condition, the aperture of the expansion valve is restored to shut down aperture to temperature to described, the air conditioner is made to be maintained at shutdown mode.So that it is guaranteed that air conditioner is effectively weakened or eliminated in entire shutdown mode pneumatic noise, avoid having an impact the experience of user.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of expansion valve control method, device and air conditioner.
Background technique
During air-conditioning heating, when room temperature is increased to assigned temperature, in order to avoid continuing to heat up, exceed Indoor Temperature
The comfort range of degree, air-conditioning would generally enter shutdown mode.It, can be quick in order to ensure exiting the mode into shutdown mode
Restore heating, usually only turns down expansion valve opening.However, since turning down suddenly for expansion valve will appear taste taste pneumatic noise, it will
Directly influence the experience of user.
Summary of the invention
In view of this, the present invention is directed to propose a kind of expansion valve control method, enters shutdown mode production to reduce air conditioner
Raw noise.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of expansion valve control method is applied to air conditioner, and opening to temperature shutdown for an expansion valve is preset in the air conditioner
Degree, the expansion valve control method include:
When the aperture of the expansion valve being adjusted downward to the first opening value and with described the according to obtaining to temperature halt instruction
When one opening value runs the first duration, the aperture of the expansion valve is adjusted downward to the second opening value by first opening value,
In, first opening value is greater than the temperature that arrives and shuts down aperture, and second opening value is less than the temperature that arrives and shuts down aperture；
Obtain corresponding operation data when the air conditioner is run with second opening value；
If the operation data of the air conditioner meets preset condition, the aperture of the expansion valve is restored to described to temperature
Aperture is shut down, the air conditioner is made to be maintained at shutdown mode.
Further, the operation data includes the operation duration and heating operations system run with second opening value
Degree of supercooling, the mode for meeting the preset condition comprise at least one of the following:
The operation duration reaches more than preset second duration；Or
The heating operations system degree of supercooling reaches specified degree of supercooling threshold value.
Further, the acquisition pattern of the heating operations system degree of supercooling includes:
Obtain the corresponding high pressure saturation temperature value of refrigerant for flowing through the expansion valve and interior machine liquid pipe temperature value；
According to the high pressure saturation temperature value and interior machine liquid pipe temperature value, the heating operations system degree of supercooling is calculated.
Further, the expansion valve control method includes:
Ambient temperature information is acquired according to the preset time interval；
When ambient temperature information is not less than the sum of predetermined temperature and preset temperature offset, it is generated to warm halt instruction.
Further, after entering shutdown mode, the expansion valve control method further include:
When the collected ambient temperature information is less than the predetermined temperature, the shutdown mode is exited, to restore
Normal heating.
Compared with the existing technology, expansion valve control method of the present invention has the advantage that
Expansion valve control method of the present invention arrives warm halt instruction for the aperture of the expansion valve according to what is obtained
It is adjusted downward to the first opening value, which is greater than the temperature that arrives and shuts down aperture, and avoid the pressure difference of expansion valve two sides from uprushing,
And then weaken pneumatic noise caused by pressure difference, meanwhile, after running the first duration with first opening value, by the expansion
The aperture of valve is adjusted downward to second opening value smaller than shutting down aperture to temperature by first opening value, increases liquid system before expansion valve
The specific gravity of cryogen further weakens or eliminates noise.And when with the operation of the second opening value, the fortune of air conditioner is persistently obtained
The aperture of expansion valve then is restored to described to shut down to temperature by row data so that the operation data in air conditioner meets preset condition
Aperture makes the air conditioner be maintained at shutdown mode.So that it is guaranteed that air conditioner is had in entire shutdown mode downstream noise
The decrease or elimination of effect avoid having an impact the experience of user.
Another object of the present invention is to propose a kind of expansion control valve device, to improve the above problem.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of expansion control valve device is applied to air conditioner, and opening to temperature shutdown for an expansion valve is preset in the air conditioner
Degree, the expansion control valve device include:
Adjustment module, for the aperture of the expansion valve to be adjusted downward to the first aperture to warm halt instruction when what foundation obtained
Value and when running the first duration with first opening value, is adjusted downward to the by first opening value for the aperture of the expansion valve
Two opening values, wherein first opening value shuts down aperture to temperature greater than described, and second opening value stops less than described to temperature
Machine aperture；
Module is obtained, for obtaining corresponding operation data when the air conditioner is run with second opening value；
The adjustment module, if the operation data for being also used to the air conditioner meets preset condition, by the expansion valve
Aperture restore to it is described to temperature shut down aperture, so that the air conditioner is maintained at shutdown mode.
Further, the operation data includes the operation duration and heating operations system run with second opening value
Degree of supercooling, the mode for meeting the preset condition comprise at least one of the following:
The operation duration reaches more than preset second duration；Or
The heating operations system degree of supercooling reaches specified degree of supercooling threshold value.
Further, the expansion control valve device includes:
Acquisition module is used for following preset time intervals acquisition ambient temperature information；
Generation module, for generating when ambient temperature information is not less than the sum of predetermined temperature and preset temperature offset
To warm halt instruction.
Further, after entering shutdown mode, the expansion control valve device further include:
Control module, for exiting described stop when the collected ambient temperature information is less than the predetermined temperature
Machine mode, to restore normal heating.
Compared with the existing technology, expansion control valve device of the present invention has the advantage that
Possessed advantage is identical compared with the existing technology with above-mentioned expansion valve control method for the expansion control valve device,
Details are not described herein.
Another object of the present invention is to propose a kind of air conditioner, to improve the above problem.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of air conditioner, the air conditioner further include:
One or more controllers；
Memory, for storing one or more programs, when one or more of programs are by one or more of controls
When device processed executes, so that one or more of controllers realize aforementioned swollen valve control method.
Compared with the existing technology, expansion control valve device of the present invention has the advantage that
Possessed advantage is identical compared with the existing technology with above-mentioned expansion valve control method for the expansion control valve device,
Details are not described herein.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the circuit structure block diagram of air conditioner described in the embodiment of the present invention；
Fig. 2 is the step flow chart of expansion valve control method described in the embodiment of the present invention；
Fig. 3 is an application example schematic diagram of expansion valve control method described in the embodiment of the present invention；
Fig. 4 is the functional block diagram that control valve device is expanded described in the embodiment of the present invention.
Description of symbols:
1- air conditioner, 2- memory, 3- controller, 4- acquisition unit, 5- expansion valve, 6- expand control valve device, 7- tune
Module is saved, 8- obtains module, 9- acquisition module, 10- generation module, 11- control module.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In addition, what is be previously mentioned in an embodiment of the present invention arrives warm halt instruction, referring to has air conditioner according to indoor ring
The instruction that border temperature generates enters the instruction of shutdown mode.What is be previously mentioned in an embodiment of the present invention arrives shutdown mode, refers to
Air conditioner persistently rises by adjusting the indoor environment temperature that expansion valve opening size avoids the indoor unit of air conditioner from regulating and controlling, and exceeds
Comfort zone.The air conditioner being previously mentioned in an embodiment of the present invention, preferably multi-gang air-conditioner device, the multi-gang air-conditioner
Device includes an outdoor unit and multiple indoor units, and the corresponding expansion valve of each indoor unit, each indoor unit can basis
Itself corresponding indoor environment temperature enters shutdown mode, non-interference between more indoor units, for convenience of explanation, the application
In will be described so that an indoor unit enters shutdown mode as an example.The operation data being previously mentioned in an embodiment of the present invention,
Refer to the expansion valve into the indoor unit of shutdown mode with the operating parameter in the second opening value operational process, for example, can wrap
The expansion valve of continuous operation duration and indoor unit that the expansion valve of indoor unit is run with the second opening value is included with the second opening value
Corresponding heating operations system degree of supercooling in operational process.What is be previously mentioned in an embodiment of the present invention shuts down aperture to temperature, is
Previously selected one is suitable for the aperture for maintaining the expansion valve of shutdown mode, swollen when which operates normally relative to air conditioner
Swollen valve opening is smaller.Shut or close too small it should be noted that if indoor unit enters expansion valve after shutdown mode, interior machine will
A large amount of refrigerants are retained, influence heating the heat exchange of interior machine or turning load high voltage protective occur；If expansion valve is not related to warm to arriving
Aperture is shut down, interior machine still has heating effect, and inner ring temperature will be higher and higher, exceeds comfort range.
Further, the present invention provides a kind of air conditioners 1, including an at least outdoor unit and more indoor units.The sky
Adjust device 1 when an indoor unit enters heat preservation shutdown mode, by repeatedly to the aperture tune for adjusting the expansion valve 5 in the indoor unit
It is whole, thus noise caused by when effectively preventing entering heat preservation shutdown mode.Referring to Fig. 1, being provided in an embodiment of the present invention
The circuit structure block diagram of air conditioner 1.
The air conditioner 1 includes: memory 2, controller 3, acquisition unit 4, expansion valve 5 and expansion control valve device 6.Its
In, controller 3 is electrically connected with memory 2, acquisition unit 4, expansion valve 5.The expansion control valve device 6 includes at least one
It can be stored in the memory 2 in the form of software or firmware (firmware).
Wherein, memory 2 can be used for storing software program and unit, such as the expansion valve controlling party in the embodiment of the present invention
Program instruction corresponding to method and device, controller 3 by the expansion valve control method that is stored in memory 2 of operation and
The software program and unit of device, it is such as provided in an embodiment of the present invention thereby executing various function application and data processing
Expansion valve control method.Wherein, the memory 2 may be, but not limited to, random access memory (Random Access
Memory, RAM), read-only memory (Read Only Memory, ROM), programmable read only memory (Programmable
Read-Only Memory, PROM), erasable read-only memory (Erasable Programmable Read-Only
Memory, EPROM), electricallyerasable ROM (EEROM) (Electric Erasable Programmable Read-Only
Memory, EEPROM) etc..
Above-mentioned acquisition unit 4 may include multiple temperature sensors.A temperature sensor is arranged in each indoor unit, is used for
Acquire the corresponding indoor ambient temperature information of indoor unit.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
First embodiment
Referring to FIG. 2, a kind of expansion valve control method provided in an embodiment of the present invention.It is swollen that one is preset in the air conditioner 1
Swollen valve 5 shuts down aperture to temperature.Optionally, above-mentioned expansion valve control method includes:
Step S101, acquires ambient temperature information according to the preset time interval.
In embodiments of the present invention, the corresponding temperature sensor of indoor unit acquires the indoor unit according to the preset time interval
The ambient temperature information of corresponding indoor environment, and feed back to controller 3.
Step S102 is generated to temperature when ambient temperature information is not less than the sum of predetermined temperature and preset temperature offset
Halt instruction.
In embodiments of the present invention, when controller 3 judge the ambient temperature information that receives not less than predetermined temperature with
The sum of preset temperature offset, it is determined that the corresponding indoor unit of the ambient temperature information needs to enter shutdown mode.At this point, control
It is corresponding with the indoor unit to warm halt instruction that device 3 can be generated one.To be adjusted accordingly to the expansion valve of the indoor unit 5
Section.It should be noted that the value of preset temperature offset is usually that range can be 0~5, preferably 2.Certainly specific
Also it can be set as other value except 0~5 under environmental condition.Above-mentioned predetermined temperature can be set by user.
The aperture of the expansion valve 5 is adjusted downward to the first opening value to warm halt instruction according to what is obtained by step S103.
In embodiments of the present invention, controller 3 works as the expansion valve 5 of corresponding indoor unit from it according to warm halt instruction
Preceding real-time aperture is adjusted downward to the first opening value.It should be noted that the first opening value, which is greater than to temperature, shuts down aperture, by expansion valve
5 apertures be adjusted downward to the first opening value its compared to the prior art in be directly adjusted downward to temperature shut down aperture, avoid 5 liang of expansion valve
So there is excessive pressure difference in pleurapophysis, and refrigerant is made to grow airflow noise by occurring when expansion valve 5.The expansion valve 5 of the indoor unit
After running the first duration with the first opening value, after the pressure difference of 5 two sides of expansion valve is stablized, process enters step S104.It needs to illustrate
, the value range of above-mentioned first aperture can be less than or equal to 120pls, preferably 80pls.Above-mentioned first duration takes
Value range can be less than or equal to 5 minutes, preferably 1min.
The aperture of expansion valve 5 is adjusted downward to the second opening value by the first opening value by step S104.
In embodiments of the present invention, above-mentioned second opening value, which is less than to temperature, shuts down aperture.It should be understood that the second opening value
For a too small aperture, such as can be close to 5 aperture of expansion valve shut.The liquid system of indoor unit under the second opening value
The accounting of cryogen will increase.Meanwhile with the increase of liquid refrigerant accounting, reaches and further eliminate or weaken airflow noise mesh
's.After the expansion valve 5 of indoor unit runs the first duration under the first opening value, the pressure difference of 5 two sides of expansion valve, which changes, to be buffered,
Excessive influence will not be caused to the pressure difference at 5 both ends of expansion valve by dropping to the second opening value from the first opening value again at this time.It needs
It is noted that the value range of above-mentioned first aperture can be less than or equal to 60pls, preferably 20pls.
Step S105, corresponding operation data when obtaining air conditioner 1 with the operation of the second opening value.
In embodiments of the present invention, in the indoor unit expansion valve 5 of air conditioner 1 in the second opening value operational process, in real time
Acquire its corresponding operation data, which may include that the indoor unit expansion valve 5 is in that the second opening value is corresponding to be held
Continuous duration and the heating operations system degree of supercooling by the indoor unit expansion valve 5.Optionally, above-mentioned heating operations system mistake
The acquisition pattern of cold degree may is that acquisition flows through the corresponding high pressure saturation temperature value of refrigerant and interior machine liquid pipe temperature of expansion valve 5
Angle value.According to the high pressure saturation temperature value and interior machine liquid pipe temperature value, the heating operations system degree of supercooling is calculated.It needs
Bright, above-mentioned high pressure saturation temperature value can be deposited based on the high-voltage value of the collected refrigerant for flowing through expansion valve 5 from advance
Contrast relationship between the high pressure and high pressure saturation temperature value of storage, which is inquired, to be obtained.
Specifically, formula can be utilized: heating operations system mistake according to high pressure saturation temperature value and interior machine liquid pipe temperature value
The corresponding interior machine liquid pipe temperature of saturation temperature-of cold degree=high pressure, calculates corresponding heating operations system degree of supercooling.
Step S106, if the operation data of air conditioner 1 meets preset condition, by the aperture of the expansion valve 5 restore to
It is described to shut down aperture to temperature, so that the air conditioner 1 is maintained at shutdown mode.
In embodiments of the present invention, after the operation data of acquisition meets preset condition, 5 aperture of expansion valve is opened from second
Angle value is opened to temperature and shuts down aperture.It avoids excessive liquid refrigerant from accumulating in machine indoors, causes in still operational process
Compressor due to lack refrigerant and be damaged.In particular, for multi-gang air-conditioner device 1, when one or more indoor units
Into shutdown mode, other indoor units still need outdoor unit to continue to run well.However, a large amount of liquid refrigerants stop at this time
It stays indoor unit then and will affect the operation of outdoor unit.It therefore, can be indoors after the liquid refrigerant accounting meet demand of machine, in time
5 aperture of expansion valve is restored to shut down aperture to temperature.It should be noted that the above-mentioned value range for shutting down aperture to temperature can be
Less than or equal to 120pls, preferably, 40pls.
In embodiments of the present invention, by whether meeting the liquid refrigeration that preset condition determines indoor unit according to operation data
Agent accounting whether meet demand.
Optionally, when the mode for meeting above-mentioned preset condition includes: that the operation duration of acquisition reaches more than preset second
It is long.It should be noted that above-mentioned second duration value range can be less than or equal to 5 minutes, preferably 1min.
Optionally, meet the mode of the preset condition further include: the heating operations system degree of supercooling of acquisition reaches specified
Degree of supercooling threshold value.It should be noted that the value range of above-mentioned specified degree of supercooling threshold value can be 1~15, preferably 9.
Step S107 exits the shutdown mould when the collected ambient temperature information is less than the predetermined temperature
Formula, to restore normal heating.
In embodiments of the present invention, controller 3 judges that the new collected indoor unit for coming into shutdown mode is corresponding
Whether ambient temperature information is lower than predetermined temperature.When ambient temperature information is less than the predetermined temperature, the shutdown mould is exited
Formula, to restore normal heating.Optionally, shutdown mode is exited, the aperture of expansion valve 5 can be restored to corresponding when operating normally
Aperture, for example, it may be by the aperture of expansion valve 5 restore to enter shutdown mode before the expansion valve 5 real-time aperture.
It should be noted that above-mentioned first opening value, the second opening value and to temperature shut down opening value can be in permission
Setting in range.In general, the real-time opening value into shutdown mode is greater than the first opening value, the first opening value is greater than temperature shutdown and opens
Degree, temperature shut down aperture and are greater than the second opening value.
In order to be carried out with example shown in Fig. 3 to the expansion valve control method to further instruction of the embodiment of the present invention
Description.In expansion valve control method as shown in Figure 3, an indoor unit is set as 40pls to temperature shutdown aperture, and user's setting should
30 DEG C of the set temperature of indoor unit, the preset temperature offset of pre-selection are 2.Above-mentioned expansion valve control method includes:
S1, the temperature sensor of indoor unit detect that ambient temperature information is 35 DEG C, and process enters step S2, is stopped with entering
Machine mode.The real-time aperture 400pls of indoor unit at this time.
S2, continues 1min after the expansion valve 5 of the indoor unit is closed by 400pls to the first opening value 80pls, process enters
Step S3.
S3 is closed the expansion valve 5 of the indoor unit to the second opening value 20pls, indoor unit expansion by the first opening value 80pls
Valve 5 enters step S4 with the aperture continuous service 1min of 20pls, process.
The expansion valve 5 of the indoor unit is opened by the second opening value 20pls to temperature and shuts down aperture 40pls holding stabilization by S4.
Until detecting the corresponding ambient temperature information of the indoor unit lower than 30 DEG C, process enters step S5.
S5, the indoor unit start heating mode automatically.
5 aperture of expansion valve is reduced by gradation, improves 5 both ends pressure difference drastic change of expansion valve, and by closing expansion valve 5
Increase liquid refrigerant accounting to too small aperture.To which relatively reliable elimination enters the noise of shutdown mode.And in time will
5 aperture of expansion valve is restored to shut down aperture to temperature from too small aperture, and 5 long-time of expansion valve is avoided to be in too small aperture, right
Compressor damages.
Second embodiment
Referring to FIG. 4, the embodiment of the invention provides a kind of expansion control valve devices 6.The expansion control valve device 6 application
Aperture is shut down in the temperature that arrives for presetting an expansion valve 5 in air conditioner 1, the air conditioner 1, the expansion control valve device 6 includes: to adjust
It saves module 7, obtain module 8, acquisition module 9, generation module 10 and control module 11.
Adjustment module 7, for the aperture of the expansion valve 5 being adjusted downward to first opening to temperature halt instruction when according to what is obtained
Angle value and with first opening value run the first duration when, the aperture of the expansion valve 5 is lowered by first opening value
To the second opening value, wherein first opening value is greater than the temperature that arrives and shuts down aperture, and second opening value is less than described arrive
Temperature shuts down aperture.
Module 8 is obtained, for obtaining corresponding operation data when the air conditioner 1 is run with second opening value.
The adjustment module 7, if the operation data for being also used to the air conditioner 1 meets preset condition, by the expansion
The aperture of valve 5 is restored to shut down aperture to temperature to described, and the air conditioner 1 is made to be maintained at shutdown mode.
Preferably, the operation data includes the operation duration and heating operations system mistake run with second opening value
Cold degree, the mode for meeting the preset condition comprise at least one of the following: when the operation duration reaches more than preset second
It is long；Or the heating operations system degree of supercooling reaches specified degree of supercooling threshold value.
Acquisition module 9 is used for following preset time intervals acquisition ambient temperature information.
Generation module 10 is used for when ambient temperature information is not less than the sum of predetermined temperature and preset temperature offset, raw
At to warm halt instruction.
Control module 11, for exiting described when the collected ambient temperature information is less than the predetermined temperature
Shutdown mode, to restore normal heating.
It is apparent to those skilled in the art that for convenience and simplicity of description, the expansion of foregoing description
The specific work process of control valve device 6, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In conclusion providing a kind of expansion valve control method, device and air conditioner in the embodiment of the present invention, wherein swollen
Swollen valve control method and device can be applied to air conditioner.That an expansion valve is preset in the air conditioner shuts down aperture to temperature,
Above-mentioned expansion valve control method includes the aperture of the expansion valve is adjusted downward to first opening to temperature halt instruction when according to what is obtained
Angle value and with first opening value run the first duration when, the aperture of the expansion valve is adjusted downward to by first opening value
Second opening value, wherein first opening value shuts down aperture to temperature greater than described, and second opening value is less than described to temperature
Shut down aperture；Obtain corresponding operation data when the air conditioner is run with second opening value；If the fortune of the air conditioner
Row data meet preset condition, then restore to shut down aperture to temperature to described for the aperture of the expansion valve, tie up the air conditioner
It is held in shutdown mode.So that it is guaranteed that air conditioner is effectively weakened or eliminated in entire shutdown mode downstream noise, keep away
Exempt to have an impact the experience of user.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of expansion valve control method is applied to air conditioner (1), that an expansion valve (5) are preset in the air conditioner (1) arrives temperature
Shut down aperture, which is characterized in that the expansion valve control method includes:
When the aperture of the expansion valve (5) being adjusted downward to the first opening value and with described first to temperature halt instruction according to what is obtained
When opening value runs the first duration, the aperture of the expansion valve (5) is adjusted downward to the second opening value by first opening value,
In, first opening value is greater than the temperature that arrives and shuts down aperture, and second opening value is less than the temperature that arrives and shuts down aperture；
Obtain corresponding operation data when the air conditioner (1) is run with second opening value；
If the operation data of the air conditioner (1) meets preset condition, the aperture of the expansion valve (5) is restored to described to arrive
Temperature shuts down aperture, and the air conditioner (1) is made to be maintained at shutdown mode.
2. expansion valve control method according to claim 1, which is characterized in that the operation data includes with described second
The operation duration and heating operations system degree of supercooling of opening value operation, the mode for meeting the preset condition includes following at least one
Kind:
The operation duration reaches more than preset second duration；Or
The heating operations system degree of supercooling reaches specified degree of supercooling threshold value.
3. expansion valve control method according to claim 2, which is characterized in that the heating operations system degree of supercooling obtains
Obtaining mode includes:
Acquisition flow through the expansion valve (5) the corresponding high pressure saturation temperature value of refrigerant and interior machine liquid pipe temperature value；
According to the high pressure saturation temperature value and interior machine liquid pipe temperature value, the heating operations system degree of supercooling is calculated.
4. expansion valve control method according to claim 1, which is characterized in that the expansion valve control method includes:
Ambient temperature information is acquired according to the preset time interval；
When ambient temperature information is not less than the sum of predetermined temperature and preset temperature offset, it is generated to warm halt instruction.
5. expansion valve control method according to claim 4, which is characterized in that described swollen after entering shutdown mode
Swollen valve control method further include:
When the collected ambient temperature information is less than the predetermined temperature, the shutdown mode is exited, to restore normal
Heating.
6. a kind of expansion control valve device is applied to air conditioner (1), that an expansion valve (5) are preset in the air conditioner (1) arrives temperature
Shut down aperture, which is characterized in that the expansion control valve device (6) includes:
Adjustment module (7), for the aperture of the expansion valve (5) being adjusted downward to first opening to temperature halt instruction when according to what is obtained
Angle value and with first opening value run the first duration when, by the aperture of the expansion valve (5) by under first opening value
It is adjusted to the second opening value, wherein first opening value is greater than the temperature that arrives and shuts down aperture, and second opening value is less than described
Aperture is shut down to temperature；
It obtains module (8), for obtaining corresponding operation data when the air conditioner (1) is run with second opening value；
The adjustment module (7), if the operation data for being also used to the air conditioner (1) meets preset condition, by the expansion
The aperture of valve (5) is restored to shut down aperture to temperature to described, and the air conditioner (1) is made to be maintained at shutdown mode.
7. expansion control valve device according to claim 6, which is characterized in that the operation data includes with described second
The operation duration and heating operations system degree of supercooling of opening value operation, the mode for meeting the preset condition includes following at least one
Kind:
The operation duration reaches more than preset second duration；Or
The heating operations system degree of supercooling reaches specified degree of supercooling threshold value.
8. expansion control valve device according to claim 6, which is characterized in that the expansion control valve device (6) includes:
Acquisition module (9), is used for following preset time intervals acquisition ambient temperature information；
Generation module (10), for generating when ambient temperature information is not less than the sum of predetermined temperature and preset temperature offset
To warm halt instruction.
9. expansion control valve device according to claim 8, which is characterized in that described swollen after entering shutdown mode
Swollen control valve device (6) further include:
Control module (11), for exiting described stop when the collected ambient temperature information is less than the predetermined temperature
Machine mode, to restore normal heating.
10. a kind of air conditioner, which is characterized in that the air conditioner (1) further include:
One or more controllers (3)；
Memory (2), for storing one or more programs, when one or more of programs are by one or more of controls
When device (3) executes, so that one or more of controllers (3) realize method according to any one of claims 1 to 5.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810921794.3A CN109028492B (en) | 2018-08-14 | 2018-08-14 | Expansion valve control method, device and air conditioner |
| PCT/CN2019/093740 WO2020034777A1 (en) | 2018-08-14 | 2019-06-28 | Expansion valve control method and apparatus and air conditioner |
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| CN110542237A (en) * | 2019-09-12 | 2019-12-06 | 广东美的制冷设备有限公司 | Air conditioner, operation control method and device thereof and computer readable storage medium |
| CN110553339A (en) * | 2019-09-19 | 2019-12-10 | 宁波奥克斯电气股份有限公司 | Heat accumulation prevention control method and device for multi-split air conditioner and air conditioner |
| CN110595004A (en) * | 2019-09-29 | 2019-12-20 | 宁波奥克斯电气股份有限公司 | Air conditioner noise reduction control method and system and air conditioner |
| WO2020034777A1 (en) * | 2018-08-14 | 2020-02-20 | 宁波奥克斯电气股份有限公司 | Expansion valve control method and apparatus and air conditioner |
| CN110986224A (en) * | 2019-11-07 | 2020-04-10 | 珠海格力电器股份有限公司 | Air conditioner, control method thereof and storage medium |
| CN114427737A (en) * | 2022-01-25 | 2022-05-03 | 宁波奥克斯电气股份有限公司 | Air conditioner noise prevention control method and device and air conditioner |
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Also Published As
| Publication number | Publication date |
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| WO2020034777A1 (en) | 2020-02-20 |
| CN109028492B (en) | 2019-10-11 |
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